I'm starting a new mage character (Steve Puppykiller, 23rd most evilist of mages), and I want to save as many skill points as possible for combat-helpful skills early on. I know where there's a free skillbook, but getting to it requires opening a door that requires Lockpick level 2. I know that later on there's a unique item which always grants +1 Lockpick. If +1 Lockpick can appear on a random store-bought, it'd be very helpful.

What level do +skill items start appearing in the shops? I know they start randomly dropping around level 10 or 11. I just don't know if Lockpick is a skill which can normally appear on items.

I am planning to max out Lockpick later anyway, so it might not mater, but it'd be nice to have a bit more of an edge earlier.